变压器油中溶解气体分析技术可以通过准确检测C2H2和H2等典型故障气体的组分和浓度,及时发现变压器潜伏性故障,判断变压器的故障类型。由于SnO2稳定的理化性质与优越的导电性能,制备了两种SnO2基体的电化学气体传感器材料,发现八面体SnO2传感器对C2H2气体敏感,十二面体SnO2对H2气体响应度较高,且结果表明制备的两种气体传感器,交叉干扰较低,可制备成传感器阵列,对H2、C2H2混合气体进行测量。
Dissolved gas analysis in transformer oil by accurately detecting the composition and concentration of typical fault gases such as C2H2 and H2,the latent faults of transformer can be found in time,and the fault types of transformers can be judged.Due to the stable physical and chemical properties and excellent conductivity,two SnO2 based electrochemical gas sensor materials were prepared.Octahedral SnO2 sensor was sensitive to C2H2 gas,dodecahedral SnO2 sensor had higher response to H2 gas.The experimental results shown that the cross-interference of the two gas sensors was low,and the sensor array can be prepared to measure the mixture gases of H2 and C2H2.
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